NAVIGATION: To make your life easier, and help you find exactly what you want, we have broken the on-line equipment catalogs into smaller sections. Just CLICK on the item you are looking for at the left, to see the matching catalog. Large graphical catalogs are a bit SLOW, so please give them a bit of time to load. The top header of each catalog is largely the same, so don't think you are stuck in one place!

You can order anything here just by picking up the phone, and calling (250) 769-1834 during normal office hours, 8:30AM to 4:30PM PST, or FAX to (250) 769-4106. OR, Email your order to Susan HERE.

E-Mail Susan if you want a quote for shipping to other destinations, or for something heavy. Sorry, we can't safely send most individual small parts in a regular letter envelope, they get destroyed by the automated handling equipment. Sometimes we can ship very rugged parts in a small padded envelope by letter post. Ask Susan.

There is a packing charge for large or heavy equipment, see the FAQ for details.

If we have your valid data on file, you can just click on the ORDER email link to place an order and indicate your approval to bill, and we will do the rest. We keep your active information for ONE YEAR for your convenience.

If this is the first time you have dealt with us, you can phone +1 (250) 769-1834 or FAX +1 (250) 769-4106 to supply the billing info, or send it by the email link, as you prefer. We accept VISA/MC, international money order, Paypal (to Susan@Okanagan.net), and bank wire transfer. Please note that there are transaction fees with Paypal and wire transfer payments, the wire transfer fee is frankly horrifying.

CONDITION: To answer your questions, YES, we completely check and inspect all used equipment, and do not offer any we feel is substandard. That gear is normally scrapped, broken down for parts, or may get offered as-is in the HOT DEALS section, with the unit's condition clearly identified. If there are any marks or detracting features, we clearly state them in the listing. Before shipment, we burn in the equipment for 24 hrs. again and re-check to be sure it is good prior to shipment.

The CATALOG will appear below shortly!Don't forget these illustrated sections take a few seconds to load, but they are worth the wait!

NEW SECTION, CLICK to VISIT
Photomultipliers, (PMT) and PhototubesEMAIL for details if interested. Great for many optical instruments, spectrophotometers, etc. Very, very hard to find! Now in their own section for your convenience.Hundreds of new, hard to find tubes just added, including many unusual photodetectors, gas regulators, RF and audio tubes! We have HUNDREDS not yet listed, including premium mil tubes, audio tubes, RF Power tubes, communciations tubes, Tek repair stock, nuvistors, compactrons, and much more. Just email if you have a request!

MOST ARE NEW TUBES IN FRESH LOOKING BOXES, marked , REFERRED TO AS 'NOS', MEANING NEW OLD STOCK, or NIB, NEW IN BOX. If the boxes are poor, or they are new reboxed tubes, they are marked and may have worn looking boxes or storage damage, although the tubes are fine. If you are working on HP or Tek older generation gear, you may need some of these. We also have a few used tubes from time to time (salvaged from working gear), marked on the list as if untested, and if tested.

We now have a wide range of higher voltage film and electrolytic capacitors, perfect for tube circuits! These are getting very hard to find, here is big stock of new parts, perfect for building your own amps from scratch, for guitar amp repairs, or general higher voltage use.

Popular Audio Tubes!Tung-SolPopular audio dual triode, new factory boxed tubes. The re-issue Tung-Sol tubes made in Russia under licence use the same outstanding design and materials as the original US Tung-Sol tubes. They have double top and bottom pin-point micas, large halo getters with silver tops, and over-sized black plates. The Ultimate 12AX7 current production tube. Big, warm, and musical. High Gain, ultra-low microphonics, and superb linearity with a dynamic 3-D sound. Outstanding build quality, you will be simply amazed when you hold these next to chinese tubes! Yes, we will match gm on pairs to within 10% tube-to-tube and side-to-side, for a $10 charge. Current distributor stock. Every tube checked prior to shipment!

Popular Audio Tubes!Electro-HarmonixPopular audio dual triode, new factory boxed tubes. These Russian made tubes have excellent construction and outstanding sound. They have double top and bottom micas, small halo getters with silver tops, and over-sized black plates. The 12AX7EH provides high gain with ultra low noise and detailed, musical tone that rivals the most desirable NOS classic types. Unique spiral filament eliminates filament to cathode induced hum common on amps that use AC on the filaments, and can make an immediate audible difference in many amps. Yes, we will match gm on pairs to within 10% tube-to-tube and side-to-side, for a $10 charge. Current distributor stock. Every tube checked prior to shipment!

Popular Audio Tubes!SOVTEKPopular audio dual triode, new factory boxed tubes, dual marked. Well made tubes, with top saucer getters, double bottom micas and black plates. This Russian made tube has strong lows and bright highs. World-renowned for its smooth, well-rounded tone. This ultra low microphonic tube is used by Fender, Ampeg, Carvin, and Hartke, among others. Yes, we will match pairs to within 10% tube-to-tube and side-to-side, for a $10 charge. Current distributor stock. Every tube checked prior to shipment!

SORRY, SOLD

$18 each

12AX7/A Pot Luck

Popular Audio Tubes!ASSORTED BRANDSPopular audio dual triode, USED TUBES in good physical condition, fully tested. These have accumulated here for a while, we often get asked for a good used tube, here they are. No choice, strictly random, everything from GE to Groove Tube.Every tube checked prior to shipment!

NationalPeculiar shaped tube, with 2 circular side flanges (gold plated) and a cap on one end. Looks like a spark gap inside, but is a T/R switch for early radar systems and microwave transceivers. Fascinating to look at. New MIL-boxed, wrapped in no-tarnish silver paper.

RCA Transmitting/Amplifier tube, high powered Triode. Popular in some high end audio amplifiers. Used tubes, older production, but fully tested on our TV7D/U, well above minimum, very good appearance. Each tube marked with test results for matching.

Just arrived, hard to find!

Just 1

$22 each

811

RCA Transmitting/Amplifier tube, high powered Triode. Popular in some high end audio amplifiers. New, factory boxed tube.Just arrived, hard to find!

Just 1

$26 each

811ACV628

RCA Transmitting/Amplifier tube, high powered Triode. Popular in some high end audio amplifiers. Used tubes, older production, but fully tested on our TV7D/U, well above minimum, very good appearance. Each tube marked with test results for matching.

Just arrived, hard to find!

SORRY, SOLD

$26 each

812

RCA Transmitting/Amplifier tube, high powered Triode. Popular in some high end audio amplifiers. Used tubes, older production, but fully tested on our TV7D/U, well above minimum, very good appearance. Each tube marked with test results for matching.

Just arrived, hard to find!

Just 1

$29 each

816

RCA Mercury Vapor Rectifier, may be new or used, but all test good, boxed.

RCA Very popular older Transmitting/Power Amplifier tube, used, but all fully tested and grouped, well over minimum Gm figures (40 on the TV-7A). Gm figures are: 65, 65, 65, 65, 60, 60, 60, 60, 58, 52. We will match up pairs on request with same gm.

Have 10

$19 each

2050

RCA Commonly used gas filled Thyratron control tube, popular Juke Box control tube. Used, very good condition, fully tested.

Just 2

$19 each

2050A

GE and RCA, used tested tubes. Compact style gas filled thyratron, popular Juke box control tube. Getting very hard to find in this condition, no boxes.

Have 2

$29 each

2050F

ORIONCommonly used gas filled Thyratron control tube, in late compact glass envelope. Late production, new in factory boxes.

RCA 5675 silver plated microwave medium-mu pencil triode tube. Full operation to 1.7Ghz, reduced input to 3Ghz, 6.3V filament. Sealed in mil bags, we will open just before shipment to do a physical inspection for damage.

CetronRuggedized, large glass octal with metal base, high power medium mu dual triodes. 400V/40W plate dissipation, very hard to find. 76/77 date codes, well matched side to side, and tube to tube, perfect on life test as well as normal operation.

2

$95 each

6661

STCJust arrived!

9

$6 each

6661

GEJust arrived!

15

$6 each

6686E81L

Philips European premium SQ (special Quality) signal tubes with GOLD PINS, made in Holland. All tested good!New in factory Boxes! Just arrived!

Ericsson New, factory boxed premium audio pentode, 10W, 6.3V fil., very hard to find! European premium tube, made in Sweden. Just arrived! 4 are from the same lot, and should match very well, one is from a different batch.

5

$18 each

6883

GE Power Tube, new in a terrible factory box, easily outputs 100W in push pull RF finals. Great SSB output stage, essentially a 12V 6146. These are fully tested, including LIFE test.

1

$25 each

6883B / 8032A / 8552

PHILIPS Power Tube, tri-marked, new in the factory box, easily outputs 100W in push pull RF finals. Great SSB output stage, essentially a 12V 6146. Two tubes are marked 6883 only, but box has all three numbers. These are fully tested, including LIFE test.

6

$35 each

6883B / 8032A / 8552

RAYTHEON Power Tube, tri-marked, new in the factory box, easily outputs 100W in push pull RF finals. Great SSB output stage, essentially a 12V 6146. These are fully tested, including LIFE test.

4

$35 each

6883B / 8032A / 8552

GE Power Tube, tri-marked, new in the box, easily outputs 100W in push pull RF finals. Great SSB output stage, essentially a 12V 6146. These are fully tested, including LIFE test.

2

$35 each

6883B / 8032A / 8552

SYLVANIA Power Tube, tri-marked, new, but REBOXED, easily outputs 100W in push pull RF finals. Great SSB output stage, essentially a 12V 6146. These are fully tested, including LIFE test.

Philips ECG factory MIL boxed, premium JAN tubes. Made in USA, date code 7/87, all from same batch. double top micas, top circular shield followed by halo getter, very nice construction, look perfect. Very popular audio tube, but getting hard to find in good quality tubes like these.

GE and Sylvania Hard to find Audio High Power Pentode, rare audio optimized O/P tube. All test very good, including life test and grid leakage. All close in gm. Only 1 GE has the metal base, others are phenolic.

IMPORTANT !Graphical logos and trademarks are the property of their respective owners, including Tektronix, Fluke, RCA, TI, GE, General Radio and Hewlett Packard, and are used here merely to unambiguously identify the products. Sphere Research IS NOT a factory authorized distributor for any of the product lines indicated.